Lead Pipe Map

Washington · population 1,663

Lead pipes in Cosmopolis, WA

12 lead or galvanized lines to replace

Most of Cosmopolis (population 1,663) gets its water from Cosmopolis Water Department. That system reported 0 lead and 12 galvanized-requiring-replacement service lines out of 753, with 601 more of unknown material.

1.6% of Cosmopolis Water Department's service lines are lead or galvanized requiring replacement, higher than the Washington average (0.3%) and lower than the national average (3.1%).

0Lead
12Galvanized, replace
601Unknown material
140Non-lead

Latest lead test for Cosmopolis Water Department (Jan 2022–Dec 2024): 1.2 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.

Compliance record: EPA lists 2 Lead and Copper Rule violations since 2015 for Cosmopolis Water Department.

Water systems serving Cosmopolis

Water systemLeadGalv.Unknown% lead
Cosmopolis Water DepartmentMain system0126011.6%
City of AberdeenServes nearby areas000–

Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.

Check your address in Cosmopolis

The counts above cover the whole water system. To see whether your line is lead, look up your address on Cosmopolis Water Department's official inventory. Utilities had to make these public by October 16, 2024.

Find the official inventory mapCosmopolis Water Department details

No map yet? Do the 2-minute scratch and magnet test.

Protect your drinking water

If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.

Pitcher filtersCheapest start. Pick one certified to NSF/ANSI 53 for lead, such as Brita Elite, PUR Plus or ZeroWater.See pitchers Faucet-mount filtersFilters straight from the tap. Look for NSF/ANSI 53 lead reduction on the box.See faucet filters Under-sink systemsBest for families. Carbon block (NSF 53) or reverse osmosis (NSF 58) units rated for lead.See under-sink

Choosing a lead-certified filter · Testing your water · Replacement cost

Nearby cities

Check another water system

Questions

Does Cosmopolis, WA have lead pipes?

Yes. Cosmopolis Water Department, which serves Cosmopolis, reported 0 lead and 12 galvanized-requiring-replacement service lines, plus 601 of unknown material.

Who supplies water to Cosmopolis?

EPA's service area maps place most of Cosmopolis in Cosmopolis Water Department's service area (PWSID WA5315050). City of Aberdeen also serves parts of the city or nearby areas.

How do I check whether my Cosmopolis home has a lead service line?

Search your address on Cosmopolis Water Department's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.

When will lead pipes in Cosmopolis be replaced?

EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Cosmopolis Water Department whether your street is scheduled and whether it covers the private side.